nrf54L15 SPIM PSEL.CSN

RE: nrf54L15 SPIM PSEL.CSN

Hung Bui — Tue, 03 Jun 2025 12:58:59 GMT

I see, thanks. It's now reported.

RE: nrf54L15 SPIM PSEL.CSN

Ingfu — Tue, 03 Jun 2025 12:51:17 GMT

Hi Hung,

what I meant is:

SPIM22

DCX and CSN is supported.
CSN functionality is supported.
DCX functionality is not supported.

RE: nrf54L15 SPIM PSEL.CSN

Hung Bui — Tue, 03 Jun 2025 12:49:23 GMT

Hi Florian,
Thanks for doing the hardwork :) The datasheet is still on version 0.x so there is still a lot of thing to improve and clean up :)

Regarding the the table, what you meant is the duplication of
DCX and CSN is supported.
CSN functionality is supported.
DCX functionality is supported.

correct ?

RE: nrf54L15 SPIM PSEL.CSN

Ingfu — Mon, 02 Jun 2025 12:33:27 GMT

Hi, the datasheet v0.9 has been updated regarding the CSN. According to Configuration table on p. 564, all SPIM instances support CSN, is that correct? I am asking, because the data sheet still states "Chip select (CSN) hardware control is supported in some instances of SPIM".

Also, the table is contradictoy:

Where do I claim my free DKs for doing your proof reading?

RE: nrf54L15 SPIM PSEL.CSN

Hung Bui — Tue, 25 Mar 2025 08:22:56 GMT

Hi Ingfu,

The sentence means not all SPIM instances have the CSN and DCX supported.
The issue is that we don't have the info about that in the Configuration section in SPIM chapter.
I have reported this internally hopefully it will be fixed soon.
For the time being, you can take a look at Pin assignments section and can find that SPIM00, SPIM20, SPIM21 have pin recommendation for CSN and DCX in the list. So you can be safe using them.